South River High School in East Edgewater and Annapolis High School have written up contracts students and parents must sign before kids are allowed to step on the dance floor for homecoming, prom and other celebrations this school year, according to the Capital Gazette.

The detailed contracts ban twerking and other gyrating dance moves that could be considered too steamy for the underage set.

"The manner of dancing will be appropriate for a school function," reads South River High School's dance contract. It details prohibited forms of dancing such as "freaking, grinding, or any other dancing that can be construed as vulgar or provocative – including TWERKING!"

Annapolis High School has asked students and parents to sign a similar contract prior to their homecoming dance this Saturday. Offenders will be escorted off the dance floor and possibly banned from future dances, including prom.

"This, unfortunately, has become the norm. Some of this crazy dancing that makes others feel uncomfortable," Annapolis High School Principal Susan Chittim told the Capital Gazette. "Some kids feel left out because of the dancing that occurs."

She said their dance contract requires a parental signature in part because, "It opens up a conversation at home."

Annapolis and South River join other high schools across the nation that have banned twerking and other forms of dance.

"Kids express themselves differently these days," Courtney Schrieve, a representative for River Ridge High School in Washington told MyNorthwest.com about its decision to ban twerking. "All you have to do is turn on YouTube and see Miley Cyrus. And we just want them to know that at a school dance there's certain expectations about how you dance."